<div class="doc-item" id="doc-1117"><h2 class="doc-item-name">pick<span class="namespace">(clojure.contrib.stream-utils)</span></h2><ul class="var-arglists"><li>(<span class="var-name">pick</span>  n)</li></ul><div class="var-docstring"><p>Return the next value of stream argument n inside a stream
   transformer. When used inside of defst, the name of the stream
   argument can be used instead of its index n.</p></div><div class="var-source"><pre>; clojure/contrib/stream_utils.clj:148
(defn pick
  [n]
  (fn [streams]
    (let [[v ns] (stream-next (streams n))]
      (if (nil? ns)
	[nil nil]
	[v (assoc streams n ns)]))))</pre></div><div class="license"><p>Copyright (c) Rich Hickey. All rights reserved.</p><p>The use and distribution terms for this software are covered by the <a href="http://opensource.org/licenses/eclipse-1.0.php">Eclipse Public License 1.0</a>, which can be found in the file
          epl-v10.html at the root of this distribution. By using this software
          in any fashion, you are agreeing to be bound by the terms of this
          license. You must not remove this notice, or any other, from this
          software.</p></div></div>